You have your cause and effect backwards.
Money flows into politics because that's where the power is. Expanding government power always brings in the desire for more influence. Further expanding the power of government to regulate political speech and campaign money will only further increase corruption.
The same people howling most about SOPA/PIPA are the people who want the government to come in an enforce regulations over "net neutrality". They want to expand the power of government to run the Internet, yet start crying when the government comes in to start to run the Internet.
For the record, I'm against SOPA/PIPA AND enforcement of net neutrality regulations.

SOPA and PIPA are two pieces of proposed legislation designed to "stop" Internet piracy… in the most hamfisted way imaginable. As Mitchell Baker explains: Assume there's a corner store in your neighborhood that rents movies. But the movie industry believes that some or even all of the videos ...